The word for today is…
masquerade (noun) – 1. (a) A costume party at which masks are worn; a masked ball. Also called masque.
(b) A costume for such a party or ball.
2. (a) A disguise or false outward show; a pretense: a masquerade of humility.
(b) An involved scheme; a charade.
(verb) 1. To wear a mask or disguise, as at a masquerade.
2. To go about as if in disguise; have or put on a deceptive appearance.
Source : The Free Dictionary
Etymology : 1590s, “assembly of people wearing masks and disguises,” from French mascarade or Spanish mascarada “masked party or dance,” from Italian mascarata “a ball at which masks are worn,” variant of mascherata “masquerade,” from maschera. Figurative sense of “false outward show” is from 1670s.